Chables h



(No Model.)

C. H. AMES & M. HARRIS.

SASH BALANCE. No. 338,817. Patented Mar. 30, 1886.

' ter, as shown in Fig. l.

UNrrnn STATES PATENT @erica CHARLES H. AMES AND MILO HARRIS, OF JAMESTOVN, NEV YORK.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 338,817, datedv March 30,1886.

Application filed November 27, 1885. Serial No. 181,086.

To all zul/7.0722, it may concern:

Be it `known that we, CHARLES H. AMES and MILo HARRIS, citizens of the United States, residing at Jamestown, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in Sash- Balances, of which the following is a specification, reference being had therein to the accompanying drawings.

The object of our invention is to provide a simple and efficient sash-balance to take the place of weights, and one that may be usedin houses already built as well as in those being built; and the invent-ion consists in the construction and arrangementof parts, as will be more fully set forth in the following specification and accompanying drawings, in Which- Figure l shows the invention as applied. Fig. 2 shows ratchet-pulley in section.

In the drawings, A represents a window as commonly made. B is the lower, and B the upper, sash, as seen from the inside.

Ve boreholes in the jamb-casings of the window-frame (suitably near the upper case of the window) to form bearings at each end for the rod G, which is made of suitable size and strength to support the sash. in any de-.gY sired position.

I I are pulleys rigidly secured to the rod G, and around which cords C C are secured and attached to the lower sash in any Suitable manner. Vhen wood is used for the rod G, we support the rod by a hanger in the cen- F is a coiled steel spring which surrounds one end of the rod, one end of the spring, a, being secured to the window-frame and the other end, a', to the pulley, So that when the sash is lowered the spring will be given a torsional stress and the Sash will be held in any desired position.

H is a loose pulley on the center of the rod, to which is secured a cord,- D, that has one end attached to the center of the upper sash in a suitable manner.

E is a steel coiled spring around the other end of the rod G,having the end of the spring,

(No model.)

b, secured to the frame of the window and the other end, b', secured to the pulley H. This Spring and pulley'balance the upper sash.

It will be observed that this method of applying helical springs for balancing windowsash is much cheaper than weights, and can readily be put in any house already built, as well as in new ones; and if the cords are ever worn, so as to need new ones, they may be put in by any one. As any desired stress may be given the spring, sash of different Weight may be balanced by the same size spring, and we can readily adjust the tension on the springs to overcome friction that may be caused by improper fitting or swelling of Sash and frame by damp weather; and to enable us to more perfectly adjust the tension of the spring we sometimes make the pulleys to which the springs are attached in two ratchet-sections, X Y, as shown in Fig. 2 of the drawings. This enables us to adjust the tension to a nicety, and at a moments time.

By using the jamb-casings for bearings of rod G itis much cheaper and stronger than any other method of holding the rod, and by putting it below the upper face-casing enables us to readily use our device on windows already built, which is v'ery desirable.

Ve are aware a helical spring for raising a sash has been used; but

Vhat we claim as new, and desire to secure by Letters Patent, is-

1. In combination with a window-frame, the supporting-rod G, having its bearings in said frame, and provided with pulleys I I, rigidly secured thereto, spring F, loose pulley H, and spring E, with suitable means of connecting the pulleys with the sash of the window, as and for the purpose set forth.

2. In combination with awindow-frame, the supporting-rod G, having its bearings below the upper casing of the window, with pulleys I I secured thereto, loose pulley H, heli cal springs E F around said rod and secured at one end to the frame of the window, their opposite ends having a torsional bearing against the bisected ratchet-pulleys H I, with suitable means o'f connecting pulleys with removing the ends of spring from `,their fixed each sash of a Window, as shown, as and -for positions, as andfor the purpose set forth. the purpose set forth. In testimony whereof We affix our signatures 3. In combination with a Window frame, in presence of two Witnesses. the rotatin rod G havin helical sprin or D springs arond said` rod, one end of the spgring being held in a fixed position, the other -en'd of the spring bearing against one section of Witnesses: the bisected pulley, so that any desired tor-I E. P. BAILEY, 1o sional stress may be given the spring without W. B. BoTsFoRD. 

